Re: Online 5.0, SCO Open Server 5 and DPT SmartRaid IV

I have used older version of DPT controller (RAID 1) with SCO 3.2.4 and Informix SE 5.x. It works fast and great! If you have resource (money) go with RAID 1. ______________________________ Reply Separator _________________________________ }Subject: Online 5.0, SCO Open Server 5 and DPT SmartRaid IV }Author: INTERNET:rmajor@moose.erie.net at CSERVE }Date: 9/6/96 12:31 AM } } }Sender: informix-list-owner@rmy.emory.edu }Received: from rmy.rmy.emory.edu (rmy.rmy.emory.edu [170.140.97.4]) by }dub-img-2.compuserve.com (8.6.10/5.950515) } id AAA05542; Fri, 6 Sep 1996 00:30:02 -0400 }Received: (from ilist@localhost) by rmy.rmy.emory.edu (8.7.1/8.7.1) id }AAA11968 for susik_lee@united#u#group.ccmail.compuserve.com; Fri, 6 Sep 1996 }00:30:27 -0400 (EDT) }From: "Ronald E. Major" <rmajor@moose.erie.net> }Message-Id: <01bb9b94$2540f620$0200a8c0@default> }Subject: Online 5.0, SCO Open Server 5 and DPT SmartRaid IV }Date: 6 Sep 1996 01:39:10 GMT }Reply-To: "Ronald E. Major" <rmajor@moose.erie.net> }Organization: ErieNet }Sender: informix-list-owner@rmy.emory.edu }To: informix-list@rmy.emory.edu }X-Informix-List-To: susik_lee@united#u#group.ccmail.compuserve.com }X-Informix-List-Id: <news.27789> } }I was wondering if anyone had any experience using Online 5.0 on an SCO }system }with a RAID subsystem. More specifically, an SCO Open Server 5 OS }with a DPT SmartRaid IV. I don't have any experience with RAID systems }(yet) }and I am concerned about performance and reliability. Which would be better }for }performance - RAID 1 or 5? My reliability concern centers on the caching }method }of the controller and database consistency. } }Our database systems range from 4Gig to 24Gig depending on the projects we }are running. To date we have been gambling with a non-RAID system with }large }drives and daily backups. No doubt that I have had to restore a database or }two }once or twice. I have been lucky the past few months (knock wood) but I }would }like to sleep at night. } }I have looked at a few RAID subsystems and found the DPT SmartRaid IV to }be the best for the price. Now I want to know as much about the issues }surrounding }RAID and Online 5.0 before I commit to any decision. Any thoughts or ideas }would be greatly appreciated. } }TIA }Ron Major }rmajor@moose.erie.net }